Malicious PDF — malware analysis report

Static analysis result for SHA-256 201ba541033bb245…

MALICIOUS

PDF

49.3 KB Created: 2021-06-10 18:19:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: b63055bc0302c0ada9b3cebe6a98210b SHA-1: 1afdc0db3bb1af7575d2adfbd30902bbbaa45c15 SHA-256: 201ba541033bb2459e93f206fb21aaca4d42c4b1adefaf7d59fe514cfe2156d8
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors and game hack lures, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK and PDF_GAME_HACK_REDIRECT_LURE heuristics. The ML classifier also flagged this PDF with high confidence. The embedded URLs suggest an attempt to redirect users to potentially harmful websites, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://netcdn.tw/app/431946152/intriga-hack-roblox-game-hack In PDF document text
    • http://gruporamos.do/images/how-to-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
    • http://gruporamos.do/images/coin-master-spin-hack-apk_GM406889139.pdfIn PDF document text
    • http://gruporamos.do/images/free-robux-generatorexe_GM431946152.pdfIn PDF document text
    • http://gruporamos.do/images/master-coin-hack-app_GM406889139.pdfIn PDF document text
    • http://gruporamos.do/images/body-roblox_GM431946152.pdfIn PDF document text
    • http://gruporamos.do/images/free-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • http://gruporamos.do/images/how-to-earn-free-robux-in-roblox_GM431946152.pdfIn PDF document text
    • http://gruporamos.do/images/freer-pro-tiktok_GM835599320.pdfIn PDF document text
    • http://gruporamos.do/images/coin-master-hack-ios-without-verification_GM406889139.pdfIn PDF document text
    • http://gruporamos.do/images/roblox-hack-game_GM431946152.pdfIn PDF document text
    • http://gruporamos.do/images/hack-coin-master-no-verification_GM406889139.pdfIn PDF document text
    • http://gruporamos.do/images/coin-master-free-coins-and-spins-link_GM406889139.pdfIn PDF document text
    • http://gruporamos.do/images/free-draw-roblox_GM431946152.pdfIn PDF document text
    • http://gruporamos.do/images/coin-master-spin-link-free_GM406889139.pdfIn PDF document text
    • http://gruporamos.do/images/free-adidas-hoodie-roblox_GM431946152.pdfIn PDF document text
    • http://gruporamos.do/images/how-to-get-free-robux-easy-hack_GM431946152.pdfIn PDF document text
    • http://gruporamos.do/images/free-robux-app_GM431946152.pdfIn PDF document text
    • http://gruporamos.do/images/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://gruporamos.do/images/coin-master-hack-tool-v1-9-download-free-pc_GM406889139.pdfIn PDF document text
    • http://gruporamos.do/images/minecraft-pe-hack-client_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000050a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50A7 29180 bytes
SHA-256: 21e61d6a936b9165724c6f330a2c61153a56b0af516d2c9c70fdb9652fd6251a
font_01_sfnt_off000092b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x92B9 2940 bytes
SHA-256: eb230542719c96b42e3fd8bb01e35f13ebd5f02629049da3a58e7fd7607bf48a
font_02_sfnt_off00009cc9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9CC9 18692 bytes
SHA-256: 0aab36751b283eb8a83b8cc4f121e055d6a78266b87217127e7e8282a76553d2

Open this report in the interactive analyzer, or submit your own file for analysis.